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Monitoring of wildfires in boreal forests using large area AVHRR NDVI composite image dataNormalized difference vegetation index (NDVI) composite image data, produced from AVHRR data collected in 1990, were evaluated for locating and mapping the areal extent of wildfires in the boreal forests of Alaska during that year. A technique was developed to map forest fire boundaries by subtracting a late-summer AVHRR NDVI image from an early summer scene. The locations and boundaries of wildfires within the interior region of Alaska were obtained from the Alaska Fire Service, and compared to the AVHRR-derived fire-boundary map. It was found that AVHRR detected 89.5 percent of all fires with sizes greater than 2000 ha with no false alarms and that, for most cases, the general shape of the fire boundary detected by AVHRR matched those mapped by field observers. However, the total area contained within the fire boundaries mapped by AVHRR were only 61 percent of those mapped by the field observers. However, the AVHRR data used in this study did not span the entire time period during which fires occurred, and it is believed the areal estimates could be improved significantly if an expanded AVHRR data set were used.
Document ID
19930060807
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Kasischke, Eric S.
(NASA Headquarters Washington, DC United States)
French, Nancy H. F.
(Michigan, Environmental Research Inst. Ann Arbor, United States)
Harrell, Peter
(NASA Headquarters Washington, DC United States)
Christensen, Norman L., Jr.
(Duke Univ. Durham, NC, United States)
Ustin, Susan L.
(California Univ. Davis, United States)
Barry, Donald
(U.S. Bureau of Land Management Alaska Fire Service, Fairbanks, United States)
Date Acquired
August 16, 2013
Publication Date
July 1, 1993
Publication Information
Publication: Remote Sensing of Environment
Volume: 45
Issue: 1
ISSN: 0034-4257
Subject Category
Earth Resources And Remote Sensing
Accession Number
93A44804
Funding Number(s)
CONTRACT_GRANT: NAGW-2645
CONTRACT_GRANT: EPA-CX-8119062-01-0
CONTRACT_GRANT: NAGW-2636
CONTRACT_GRANT: NAGW-2692
Distribution Limits
Public
Copyright
Other

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